Copying-press.



PATENTED FEB. 3, 1903.

H. L. DAVIDSON.

COPYING PRESS.

APPLIOATION FILED MAR. a, 1902.

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No. 719,759. PATENTED FEB. 3, 1903.

. H. L. DAVIDSON.

COPYING PRESS. APPLICATION FILED MAR. 3, 1902.

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W/TNESSES: IN VENTOH A TTOHNE Y No. 719,759. V PATENTED FEB. 3, 1903. H.L. DAVIDSON.

COPYING PRESS.

APPLICATION FILED MAR. a, 1902.

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- H; L. DAVIDSON. COPYING PRESS.

APPLICATION FILED MAB-.13, 1902'.

'PATENTED FEB. a, 1903.,

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I'IALF TO JOHN C. DAVIDSON,

OF LOUISVILLE, KENTUCKY.

COPYING -PRESS.

SPECIFICATION forming part of Letters Patent No. 719,759, dated February3, 1903.

Application filed March 8, 1902.

To all whom it may concern:

Be it known that I, HAROLD LEE DAVIDSON, a citizen of the United States,residing at Louisville, in the county of Jefferson and State ofKentucky, have invented an Improved Copying-Press, of which thefollowing is a specification.

My invention relates to that class of copying-presses in which rollersare used; and the objects of my improvement are to provide a press whichshall be simple in construction, effective in use, doing its workrapidly in copying on detached sheets or on a continuous strip or in abook, and which may be produced at small cost."

The details of construction, arrangement, and operation are ashereinafter described, reference being had to accompanying drawings, inwhich- Figure l is a perspective view of the press secured to a bench ortable, as in use. Fig. 2 is a face view of the upper portion of thepress, the hinged portion of the frame which carries the pressure-rollerbeing thrown back. Fig. 3 is a detail side view of the upper portion ofthe press, showing the attachment and arrangement of thecompression-clamp. Fig. 4 is a detail section illustrating theapplication of the endless moistening-belt to the driving-roller. Fig. 5is a perspective view illustrating the construction and arrangement ofthe paper-guard employed for separating wet sheets of the copying-paperfrom the belt. Fig. 6 is a plan viewof the'press, including a portion ofthe table to which it is attached and a portion of a copying-book placedin position on the table. Fig. 7 is a side or edge view of the press,showing it attached to the edge of a table. Fig. 8 is a vertical sectionof the press, the copyingbook, and the table upon which the latterrests.

As indicated particularly in Fig. 1, the letter A indicates the mainportion of the frame of the press, which is provided with screwclamps 1,adapted to be applied-to the edge I of a bench or table 2 and to supportthe press in vertical position, as shown in Fig. l.

B indicates the upper portion of the frame, which is'hinged at 3 to astationary portion A and is thus adapted to be thrown back Serial No.96,507. (No model.

and rest in vertical position, as shown in Fig. 2. A driving-roller 4 isjournaled in the upper portion of the stationary part A, and amoistening-belt 0 runs thereon, as shown.

An idler-roller 5 is arranged in the lower portion of the belt within awatertrough D, which forms an attachment of the vertical legs 6 of frameA. The reduced ends of theidler5 form journals which work in grooves 7,formed longitudinally in the frame-legs 6. The said roller is thereforeadapted for free vertical movement. In practice it rests in and issupported by the belt 0 alone, and its weight serves to hold the latterstretched duly taut. The rollers 3 4 5 are covered with rubber to forman elastic working surface. As shown in ,Fig. 4, the edges 8 of the belt0 are thickened or enlarged, and thereby rendered stronger than theintervening portion of the belt. Fur- 7o ther, the belt is made ofslightly greater width than the length of the said roller 4, so that thethickened portion 8 runs contiguous to the ends of the roller, as shown.By this means the belt is kept securely in place on the roller withoutthe aid of extraneous guides or other devices for the purpose. For thepurpose of detachably connecting the trough D with the pendentframe-legs 6 I employ spring-catches 9, whose freenpper ends are bentlaterally and adapted to enter holes formed in the said legs. It isobvious that this attachment provides for vertical adj ustment of thetrough D as conditions may require. The trough is provided at its ends 8with vertical flange-guides 10, which receive the channel-legs 6 of theframe A and hold the trough D in due vertical and central positionwhatever be its vertical adjustment. The said legs 6 are preferablyformed ofsheet metal or channel-iron and securely riveted to the upperportion of the frame A, which is preferably constructed of cast iron. Asshown in Fig. l, the upper portion of the frame is suitably constructedto form bear- 5 ings for the journals of the driving-roller at. Theright-hand journal 4 of said roller is provided with a crank 11, whichis clamped thereon by means of a. screw. In the hinged portion B of theframe is journaled the upper or pressure roller 4 the journals of thesame having their bearings in boxes 12, and the 'alinement with thelever 17.

arrangement being such that when the hinged frame B is closed down uponthe main frame A, as shown in Figs. 1, 3, and 7, the upper rollerpresses upon the lower one, or rather upon the belt carried thereby. Forthe purpose of adjusting the pressure of the upper roller upon the loweras may be required I employ screws 13, which work in threaded boresformed Vertically in the end portions of the hinged frame B. The lowerends of these screws are so constructed as to adapt them to slide intoundercut or T shape grooves (see Figs. 1 and 7) which are formed in theupper sides of the bearings 12. This construction permits the bearings12 to be inserted endwise in boxes formed at the ends of the hingedframe B. For the purpose of locking the bearing-blocks 12 of the frame Band yet permit them to have vertical movement, as required for verticaladjustment of the pressure-roller l I employ screws 14, which areinserted horizontally through the dogs formed at the ends of the hingedframe B and whose points enter vertical grooves in the blocks 12. Theheads of the adjustingscrews 13 may be enlarged, or they may be providedwith sockets for adjustment of a suitable wrench for turning.

For the purpose of securing the hinged frame B, with its rollers 4 tothe main frame A in working position I employ what I term acompression-clamp E. The same is constructed practically upon theprinciple of a toggle-lever. Hook-levers 15 are pivoted in parallelpositionat 16 on opposite sides of the right-hand journal-box of frameB, and

.their upper ends are pivoted to a lever 17,

whose lower end is forked and pivoted at a point above the fulcrum ofthe hook-levers. The. said lever 17 is provided with a handle 17, whichextends at right angles to it inward, and when the clamp E is closed, asshown in Figs. 1 and 6, such handle lies in horizontal position directlyupon the frame B. It will be further seen that in such position thehook-levers 15 are nearly in vertical The hinged lower ends of saidlevers engage lugs 18,Which project laterally from the frame A, and whenthe handle-lever 17 is thrown to the position shown in Fig. 1 the hooksengage lugs 18, and thus the frame B is locked in position and the upperroller 4 is pressed hard upon the driving-roller 4. To permit therequired movement of the hook-levers 15, they are provided with diagonalslots at the fulcru m-point. In other words, the guide screws 16 passthrough inclined slots which allow a certain required movement of thelevers 15, whereby they are adapted to engage with and to be disengagedfrom the lugs 18 when the handle-lever 17 is suitably manipulated forthe purpose. It will be understood that thepivotal connections are suchthat when the handle-lever 17 is thrown to the closed position,

Fig. 1, the upper ends of the hook-levers 15 are thrown slightly back orto the left of a vertical line drawn through their pivot and the lugs 18and the fulcrum of the handle lever 17. Thus the compression-clamp E isself-locking.

A skeleton paper or letter rack F is provided in front of the rollers 44". (See Figs. 1, 6, and 8.) The same comprises horizontal rods 19,which are curved downward at their outer ends and connected with acurved rod 20, the whole being arranged horizontally, whereby it isadapted to support a letter or other paper requiring to be copied. frame19 20 forms a rigid attachment by means of a horizontal angle-bar 21,whose inner end is riveted to a lug or projecting portion of the frame Bat a point adjacent to its hinge. Other rods or fingers 19 are arrangedover the rods 19 and separated therefrom ,as shown, to allow convenientinsertion of a letter or other paper. These upper rods 19 form also afixed attachment of the angle-bar '21. In Fig. 2 this rack F is shownthrown up, together with the swinging frame B and the pressure-roller4". A copying-book Gis shown resting upon the table 2, and this may beof such width as to nearly fill the space between the upper portion ofthe screw-clamps 1, as shown in Fig. 6, so that such clamps form guidesserving to hold the book in due position as to lateral movement.

The upper portion B of the frame, with its roller 4:", must be swung upout of the way for each copy that is made, so that the sheet ofcopying-paper may be laid over or upon the belt O,whereupon the frame Bis thrown down to its normal working position and the compression-clampE is manipulated to lock it securely in place. It is apparent that thisoperation requires but a single motion of the operatorthat is to say, asingle manipulation of the toggle-lever 17.

For the purpose of driving upward the letter which is copied I employ adeflector 22, the same consisting of a metal plate arranged horizontallyin front of the rollers 4: 4 (see Fig. 8) and the same being pivoted inthe brackets 23, attached to the frame B. The form of this deflector isan oblong rectangle. The book or assemblage of copying leaves or sheetsrests upon the shelf or support 2, (see Fig. 8,) the sheets being turnedback from their connected edges, which lie opposite the fundamentalroller 4, but separated therefrom by a space sufficient to allow a leafor sheet to follow the moistening-belt downward and strip off therefrom.When the copying-sheet is drawn directly across from the book G to therollers, as shown by dotted lines in Fig. 8, the swinging or free edgeof the deflector 22 rests by gravity upon it and swings with it when itmoves downward. The advancing edge of the letter or other paper beingcopied strikes the deflector and is directed upward by it, being thusseparated from the wet copying-sheet.

It will be understood that to begin the copying operation the upperportion B of the frame This is swung up into the vertical position shownin Fig. 2, and the copying-sheet from the book Gis drawn over and laidupon the belt 0. The letter or other writing to be copied is thendropped into the rack F while still held in vertical position, theletter passing thus between the wire rods 19 and 19, the letterheadbeing left in such position that it projects under the roller 4 Then theframe part B is closed down, whereby the letter-head is clamped betweenthe two rollers and the compression-clamp E is locked. The crank 11 isthen rotated to the right and the letter travels between the rollers anddrops down, being gradually separated from the belt 0 and finallyhanging vertical and free, as indicated at 24 same figure. Thiscompletes the copying operation. The compression-clamp E is thenunlocked and the operation repeated.

\Vhen sheets bearing copies accumulate, they may be carried back intothe position indicated at 2% by means of a device 25, which is in thenature of a crank. It is fully shown in Fig. 5, the same consisting of arod bent to suitable form and provided with a crank handle and journaledin horizontal bars or arms 26, attached to the channel-legs 6 of themain frame A. It will be seen that in operation the crank is swungdownward, so as to pass under the set of leaves 24 and come in contactwith their upper sides as it swings upward, so as to push them outwardwhen the circle of rotation is completed. It will be understood that therollers 4 4* have a suitable elastic covering of india-rubber. It willbe understand that my device is especially adapted to permit the copyinginto the bound or other books, as well as on individual sheets.

What I claim is- 1. In a copying-press, the combination of a frame,comprising a pendent part provided with screw-clamps for adjustment to atable or similar support, a swinging part hinged above the saidstationary part and adapted to move in the same vertical planetherewith, a compression-clamp applied on the side opposite the hinge, afundamental or fixed roller journaled in the upper portion of the saidstationary part, a pressure-roller journaled in said swinging part andadapted to lie above and press upon the fixed roller when the hingedframe is closed and locked, and an idler-roller arranged in the lowerpart of the stationary frame, substantially as described.

2. In a copying-machine, the combination of a frame divided into twoparts, a stationary vertical part which carries a driving-roller aboveand an idler below, and a swinging part which carries a pressure-rolleradapted to be brought down upon the drive-roller, and acompression-clamp arranged at the free end of the swinging part andadapted to lock it to the fixed part so as to produce due pressurebetween the drive and pressure rollers, substantially as shown anddescribed.

3. In a copying-machine, the combination of a series of rollers, aframe, and screwclamps on said frame for attaching to a table or stand,said screw-clamps forming guides between which a copying-book is placedon said table or stand, substantially as specified.

4. In a copying-press, the combination of a compression-clamp,consisting of tensionplates, a toggle-piece, handle, and lugs, the saidtension-plates being provided with slots substantially as shown anddescribed.

5. In a copying-press, the combination of a frame, a train of rollers,and a pivoted swinging deflector for deflecting the letter-sheet,substantially as specified.

6. In a copying-press, the combination of a frame, a train of rollers,and a double crankguard revolubly mounted in brackets for holding backcopied pages of the letter-book, substantially as specified.

7. Inacopying-machine,thefollowingcombination: a frame comprising alower stationary part provided with screw-clamps for at- I taching to atable or stand, an upper part hinged to said lower part on one side andprovided with a compression-clamp on the opposite side, a fundamentalroller journaled in said stationary part of the frame, an idlerroller atsome distance below said fundamental roller, an absorbentmoistening-belt working over said fundamental roller and saididler-roller, an adjustable pressure roller journaled in said upper partof the frame, a letter-feed rack rigidly attached to the said upper partof the frame and swinging therewith, a pivoted letter-deflector mountedon said upper part of the frame and swinging therewith, and a copy-sheetguard mounted on the said lower part of the frame, all adapted, and socoacting as to copy letters rapidly and clearly in a book ofcopying-paper mounted on the aforementioned table or stand betweenaforesaid screw-clamps, substantially as and for the purposes specified.

8. In acopying-press, the combination with a stationary frame, of aswinging part which is hinged thereto, and adapted to swing in thevertical plane of said stationary frame, a driving-roller journaled inthe upper portion of such stationary part,and adapted to be driven, apressure-roller journaled in the swinging part, and means for lockingthe two parts of the frame together detachably and producing pressurebetween the rollers when the rollers are in horizontal position,substantially as shown and described.

In a copying-press, the combination with the main frame provided withscrew-clamps for adjustment to a fixed support, a swinging part hingedto the stationary one, rollers journaled in the respective parts of theframe, and a toggle-lever and locking mechanism consisting of a pivotedhand-lever and pivoted hook-levers pivoted together and at differentpoints upon the swinging part and lugs formed on the fixed part withwhich the hook-levers IIO are adapted to engage, when the hand-lever isthrown to due position, as shown and described.

10. The combination with a main frame, and rollers journaled andarranged parallel and to work in contact, of a letter-deflectorconsisting of a plate pivoted adjacent to the rollers, as shown anddescribed.

11. In a copying-press, the combination with a main frame, and a rollerarranged in its upper portion, a frame part or section hinged to suchmain frame, and a roller carried by the hinged frame of a letter-holdingrack for supporting letters to be copied, the same comprising upper andlower portions arranged one over the other, and separated at the outeror free edges, the upper portion preventing the letter from toppling offwhen the upper hinged part of the frame is raised and the angle orseparation serving to aline the letter when it is dropped in, as shownand described.

12. Thecombination ofthe following means or instrumentalities foreffecting copying in the manner described: a guide-frame held invertical position, a fundamental roller, an idle roller, and amoistening-belt running thereon, a movable frame-section hinged to thetop of said guide-frame and a pressureroller journaled therein, a meansfor holding the pressure-roller down upon the fundamental one, ahorizontal support arranged in proximity to the pressure and fundamentalrollers but separated therefrom by a narrow space, a series ofcopying-sheet sections and held upon the said support with edge of foldadjacent to the fundamental roller, the sections being thrown upward andbackward and thus lying horizontal, whereby a section being thrownforward and then passing through the press proper is automaticallycarried down in the space before referred to, and stripped off themoistening-belt, and hangs suspended vertically, as shown and described.

13. The copying-press adapted for copying into a book and provided witha main section having a roller, and a hinge-section having a rolleropposing the main section and arranged to open to permit the insertionbetween the said rollers of the leaf or leaves of a book andhavingadjacent to said rollers a device by which to shift the leaves asthey accumulate in the operation of making the copies, substantially asset forth.

HAROLD LEE DAVIDSON.

Witnesses:

J. A. FRAYSER, R. O. HEYSER.

